A press for large-size ceramic products comprises a modular structure (2) defined by a plurality of annular plates (3), aligned in succession one after the other, and provided with a through seat (4) which has a lower portion (5) and an upper portion (6) opposite one another, a bed (7) supported by the annular plates (3) at the lower portion (5) and a head (8) connectable to the upper portion (6), wherein the bed (7) and the head (8) delimit a work chamber (9) for housing power elements (10) suitable for carrying out the operations of pressing a material to be pressed, and a conveyor belt (12) that passes through the through seat (4) along a longitudinal direction (C) of the modular structure (2), wherein the power elements (10) comprise at least one upper punch (14), first lateral holding elements (15) and second lateral holding elements (16) for the powder material to be pressed, movable with respect to one another and suitable for delimiting during use a work chamber where such powder material is pressed.
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